phrasing improvement

Co-authored-by: Ted Thibodeau Jr <[email protected]>

index.bs

@@ -1772,7 +1772,7 @@ Charter Refinement</h3>
 	* Decisions are made as [=group decisions=], where the group is made up of all individuals participating in this process,
 		(though only W3C [=Members=] and the [=Team=] can participate in any formal [[#Votes|vote]]).
 
-	The [=charter refinement=] phase concludes when there is either:
+	The [=charter refinement=] phase concludes when there is either of the following:
 	* A [=group decision=] or [=Team Decision=] to initiate [=AC Review=] of the [=charter draft=],
 		subject to [=Team=] verification that the expectations of [=charter refinement=] are fulfilled.
 	* A [=chair decision=] by the [=Chartering Facilitator=], confirmed by a [=Team Decision=], to abandon the proposal.